diff --git a/src/base/inet.cc b/src/base/inet.cc
index bdd1b57ad..190a7a11e 100644
--- a/src/base/inet.cc
+++ b/src/base/inet.cc
@@ -124,7 +124,7 @@ EthAddr::string() const
 bool
 operator==(const EthAddr &left, const EthAddr &right)
 {
-    return memcmp(left.bytes(), right.bytes(), ETH_ADDR_LEN);
+    return !memcmp(left.bytes(), right.bytes(), ETH_ADDR_LEN);
 }
 
 ostream &